// Copyright Octelium Labs, LLC. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//	http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package deviceinfo

import (
	"context"
	"strings"

	"github.com/zcalusic/sysinfo"
)

func getSerialNumber(ctx context.Context) (string, error) {

	var si sysinfo.SysInfo
	si.GetSysInfo()

	ret := si.Chassis.Serial

	switch {
	case ret == "" || strings.ToLower(ret) == "default string":
		ret = si.Product.Serial
	default:
		return ret, nil
	}

	if strings.ToLower(ret) == "default string" {
		return "", nil
	}

	return ret, nil
}
